Just had my first shake, choc mint in a big cup with lots of water. I added cold water to cup so the cup was a third full, powder, whizzed it up with aerolatte, and then added boiling water, tasted it to check not too hot and added more hot water. It was about 40% cold water and 60 % boiling so it was right temp for drinking. It was nice albeit a bit weak (prob because got used to strong tetras) and i'm not hungry now.